16 Best Ecommerce Knowledge Base - [2026] Guide with Examples

TL;DR Summary An ecommerce knowledge base is a searchable, AI-powered self-service library that resolves customer questions about shipping, returns, and subscriptions without agent involvement. 61% of customers attempt self-service before contacting support, making a functional knowledge base a primary deflection channel. Gartner data shows self-service resolves contacts at $1.84 each versus $13.50 for live agents, a 7x cost difference.